Center Align text in UITableViewCell problem

user_5170 0
Viewed 65659

I'm kinda new to Objective-C and iPhone development and I've come across a problem when trying to center the text in a table cell. I've searched google but the solutions are for an old SDK bug that has been fixed and these don't work for me.

Some code:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
    }

    cell.textLabel.text = @"Please center me";
    cell.textLabel.textAlignment = UITextAlignmentCenter;
    return cell;
}

The above doesn't center the text.

I have also tried the willDisplayCell method:

- (void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath {
    cell.textLabel.textAlignment = UITextAlignmentCenter;
}

and I've tried some of the old posted solutions: 

UILabel* label = [[[cell contentView] subviews] objectAtIndex:0];
label.textAlignment = UITextAlignmentCenter;
return cell;

None of these have any effect on the text alignment. I have run out of idea's any help would be most appreciated.

Cheers in advance.

ios4 objective-c iphone
9 Answers

This hack will center the text when using UITableViewCellStyleSubtitle. Load both text labels with your strings, then do this before returning the cell. It might be simpler to just add your own UILabels to each cell, but I was determined to find another way...

// UITableViewCellStyleSubtitle measured font sizes: 18 bold, 14 normal

UIFont *font = [UIFont boldSystemFontOfSize:18]; // measured after the cell is rendered
CGSize size = [cell.textLabel.text sizeWithFont:font];
CGSize spaceSize = [@" " sizeWithFont:font];
float excess_width = ( cell.frame.size.width - 16 ) - size.width;
if ( cell.textLabel.text  &&  spaceSize.width > 0  &&  excess_width > 0 ) { // sanity
    int spaces_needed = (excess_width/2.0)/spaceSize.width;
    NSString *pad = [@"" stringByPaddingToLength:spaces_needed withString:@" " startingAtIndex:0];
    cell.textLabel.text = [pad stringByAppendingString:cell.textLabel.text]; // center the text
}

font = [UIFont systemFontOfSize:14]; // detail, measured
size = [cell.detailTextLabel.text sizeWithFont:font];
spaceSize = [@" " sizeWithFont:font];
excess_width = ( cell.frame.size.width - 16 ) - size.width;
if ( cell.detailTextLabel.text  &&  spaceSize.width > 0  &&  excess_width > 0 ) { // sanity
    int spaces_needed = (excess_width/2.0)/spaceSize.width;
    NSString *pad = [@"" stringByPaddingToLength:spaces_needed withString:@" " startingAtIndex:0];
    cell.detailTextLabel.text = [pad stringByAppendingString:cell.detailTextLabel.text]; // center the text
}
user_2364150

Here is what works for me...

NSString *text = @"some text";
CGSize size = [text sizeWithAttributes:@{NSFontAttributeName:SOME_UIFONT}];

[cell setIndentationLevel:1];
[cell setIndentationWidth:(tableView.frame.size.width - size.width)/2.0f];

cell.textLabel.font = SOME_UIFONT;
[cell.textLabel setText:text];
user_421000
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